저자명 Hoon Huh Kwanghyun Ahn Hyung Won Kim Lee Ju Park Ji Ho Lim 
Name KISHEM 
Place Incheon, Korea 
Year 2012 
This paper evaluates existing well- known dynamic hardening models for metallic materials of typical crystalline structures. The information of the dynamic response of metallic materials is indispensable for the analysis of deformation and loading states under high strain rate conditions. Although various dynamic hardening models have been suggested by many researchers, a unique model is hardly found to represent the dynamic hardening characteristics of all types of materials. In order to evaluate existing dynamic hardening equations reported, materials for three typical crystalline structures have been selected and evaluated using the dynamic hardening characteristics of three kinds of materials: 4340Steel (BCC); OFHC (FCC); and Ti6Al4V (HCP). The dynamic hardening characteristics of each material have been obtained from uni-axial tensile tests and Split Hopkinson Pressure Bar tests. Uni-axial quasi-static and dynamic tensile tests have been performed with the variation of the strain rate from 0.001/sec to 100/sec, and SHPB tests have been conducted at higher strain rates ranging up to 4000/sec. Several existing models have been constructed and evaluated for the Johnson-Cook model, the Zerilli-Armstrong model, and the Preston-Tonks-Wallace model with the test results of the three materials. Several models suggested by the authors have also been compared for the modified Johnson-Cook model, the modified Khan-Huang model, and the Lim-Huh model. The change of the strain rate and the temperature during the deformation process was taken into account for the accurate applications of the hardening equations. The most applicable equation for each material has been recommended after thorough comparison of the constructed results.
번호 제목 저자명 날짜 조회 수
176 TOPOLOGY OPTIMIZATION OF PLASTIC STRUCTURES USING FINITE ELEMENT LIMIT ANALYSIS file Jongsup Lee, Hoon Huh  2009.07.30 8190
175 A Phenomenological energy-based Model for PBX Simulants Considering the Mullins Effect file Kee Sun Yeom Sehwan J...  2013.02.06 7954
174 Compressive Characteristics of PBX Simulant with the Variation of the Strain Rate file Chunghee Park, Sehwan...  2012.09.21 7939
173 Dynamic Failure Characteristics of Electric Resistance Spot Welds in DP Steel Sheets [2] file Jiwoong Ha Hoon Huh J...  2012.12.10 7651
172 Variational Time Integrators for Handling Discontinuous Interfaces in Solids file S. J. Lim S. S. Cho H...  2012.03.20 6988
171 MECHANICAL CHARACTERISTICS OF PBX SIMULANT CONSIDERING STRAIN RATE EFFECT file Chunghee Park Sehwan ...  2011.07.04 6849
170 Buffer Stopper Using Progressive Compression Process for Crash Energy Absorption of a Railway Vehicle Kwanghyun Ahn Hoon Hu...  2011.12.22 6742
169 Effect of helicity on the buckling behavior of single-wall carbon nanotubes file Jeehyang Huh Hoon Huh  2008.12.15 6630
» Evaluation of Dynamic Hardening Models for Metallic Materials at Wide Range of Strain Rates file Hoon Huh Kwanghyun Ah...  2012.09.26 6543
167 Micro-Tensile Tests of Aluminum Thin Foil with the Variation of Strain Rate file J.B. Kwon J. Huh H. H...  2012.06.19 6480
166 Development of Buffer Stopper Using Progressive Compression Process for Crash Energy Absorption of a Railway Vehicle file Kwanghyun Ahn Hoon Hu...  2012.12.10 6462
165 Quantification of Material Properties of Structural Materials for Warhead at Various Strain Rates file Kwanghyun Ahn Hoon Hu...  2012.09.26 6389
164 Material Behaviors of PBX Simulant with Various Strain Rates [1] file Chunghee Park Sehwan ...  2013.01.08 6378
163 Material Properties of PBX Simulant Considering Strain Rate Effect file Chunghee Park Sehwan ...  2010.12.22 6310
162 Ductile fracture of dual phase steel: mechanisms, modeling, prediction and prospective applications file Yanshan Lou, Hoon Huh  2013.02.01 6283
161 Effect of Strain Rate on the Material Characteristics of a Fragment-Simulating Warhead and an Armor Plate file Jiwoong Ha Hoon Huh K...  2012.06.27 6251
160 Prediction of forming limit diagrams of DP590 steel based on the M-K model with experimental verification file Yanshan Lou Seokbong ...  2010.12.27 5943
159 Effect of the Yield Stress and r-value Distribution on the Earing Profile of Cup Drawing with Yld2000-2d Yield Function file Yanshan Lou Gihyun Ba...  2010.07.14 5916
158 Rate-dependent two-surface model for cyclic hardening behaviour of advanced high strength steel sheets file Jeehyang HUh Hoon Huh...  2012.11.06 5880
157 Development and investigation of nonlinear shell elements with drilling degree of freedom file H. W. Lee H. Huh  2005.11.29 5845